HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 103

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

3.2.2
Bit 7—Reserved: Only 0 should be written to this bit.
Bit 6—Reserved: This bit is always read as 0, and cannot be modified.
Bits 5 and 4—Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select the control
mode of the interrupt controller. For details of the interrupt control modes, see section 5.4.1,
Interrupt Control Modes and Interrupt Operation.
Bit 5
INTM1
0
1
Bit 3—NMI Edge Select (NMIEG): Selects the valid edge of the NMI interrupt input.
Bit 3
NMIEG
0
1
Bit 2—LWR Output Disable (LWROD): Enables or disables LWR output.
Bit 2
LWROD
0
1
Bit 1—IRQ Port Switching Select (IRQPAS): Selects switching of input pins for IRQ
IRQ
Bit
Initial value :
R/W
4
to IRQ
System Control Register (SYSCR)
Bit 4
INTM0
1
1
Description
Description
0
0
An interrupt is requested at the falling edge of NMI input
An interrupt is requested at the rising edge of NMI input
PF
PF
7
input is always performed from one of the ports.
:
:
3
3
is designated as LWR output pin
is designated as I/O port, and does not function as LWR output pin
R/W
—
7
0
Interrupt Control
Mode
—
—
0
2
—
—
6
0
INTM1
R/W
5
0
Description
Control of interrupts by I bit
Setting prohibited
Control of interrupts by I2 to I0 bits and IPR
Setting prohibited
INTM0
R/W
0
4
Rev.4.00 Sep. 07, 2007 Page 73 of 1210
NMIEG
R/W
3
0
LWROD IRQPAS
R/W
2
0
REJ09B0245-0400
R/W
1
0
(Initial value)
(Initial value)
(Initial value)
4
to IRQ
RAME
R/W
0
1
7
.